/Engine/Source/Runtime/SlateCore/Public/Animation/CurveSequence.h
Start playing this curve sequence in reverse. Registers an active timer for the widget using the sequence.
void PlayReverse ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > & InOwnerWidget, bool bPlayLooped, const float StartAtTime, bool bRequiresActiveTimer )